Here is the full list of all 51 Far Cry 3 trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Obtain all the Trophies.
Attend the final ceremony.
Kill Hoyt.
Complete Riley's interrogation.
Earn every tattoo by learning all the skills.
Liberate all outposts.
Gather all the memory cards.
Gather all "Letters of the Lost".
Use your wingsuit to reach the Southern island.
Kill Vaas.
Survive the encounter with Vaas and escape.
Rescue Keith from Buck.
Rescue Oliver from the pirates.
Gather a total of 60 relics.
Fully distract 25 enemies with rocks (Single Player only).
Activate 9 radio towers.
Complete the Rakyat initiation.
Dive more than 60m (Single Player only).
Kill a target from 70m or more with the bow (Single Player only).
Kill an enemy with a takedown from above from a glider, zipline or parachute (Single Player only).
Find the lost Hollywood star.
Freefall more than 100m and live (Single Player only).
Craft a special syringe.
Rescue Liza from the burning building.
Kill 50 enemies with the flamethrower (Single Player only).
Kill an enemy with the Repair Tool (Single Player only).
Kill 4 enemies simultaneously with one explosion (Single Player only).
Hunt and skin a rare animal.
Craft 25 syringes.
Return to the doctor with the cave mushrooms.
Win $1500 playing poker.
Liberate 3 outposts.
Complete a Supply Drop quest.
Tag 25 enemies using the camera (Single Player only).
Unlock 50 entries in the Survivor Guide.
Buy all attachments and paint jobs for one weapon.
Spend $5000 at the shop.
Liberate an outpost without triggering an alarm.
Beat any Trial of the Rakyat score.
Earn 5 skill tattoos.
Craft 5 upgrades for your equipment.
Complete a WANTED Dead quest.
Complete a Path of the Hunter quest.
Lure and kill a predator.
Escape the pirates and survive in the wilderness.
Complete "Rush Hour" Co-op map (Online/Offline).
Complete "Lights Out" Co-op map (Online/Offline).
Complete "Payback" Co-op map (Online/Offline).
Complete "Overboard" Co-op map (Online/Offline).
Complete "Sidetracked" Co-op map (Online/Offline).
Complete "Ready or Not" Co-op map (Online/Offline).